My car is running like a raped ape now. Me and my uncle tuned the car because it was running like crap and had no power. The only way we could drop the idle below 1400 rpm was remove the vacuum advance line. So now the car will run to 6000 rpm without a hitch. No more stumbling.. just runs amazing. Everyone is telling me I NEED vacuum advance. What should i do? If i put it back on, the idle automatcally goes up to 1400 and i cant lower below that. If i do drop it any, the car will stumble and die. Thanks!